XB GS Coupe - Ford Forums - Mustang Forum, Ford Trucks, Ford Focus and Ford Cars

xbcoupe · 05-24-2005, 17:49

Howdy All

Hoping someone can answer a couple of simple questions.
I have an XB Fairmont GS Coupe (351), when I purchased it, it came with a single 3" system. The rear skirt that sits under the rear bumper has been filled so that there are no cut-outs for the exhaust to exit. (the current 3" dumps downward and is hidden behind this panel)
1st question - did the V8 XB GS (with twin systyem) come with two round cut outs in this panel ? (GT's came with rectangular cut outs I believe).
2nd question - Does that mean (if in fact the cut outs were round) that this is the same as an XC Coupe's skirt?
Finally - did any of the V8's of that era come with twin 2.5" systems, or were they all 2" twins?
I am looking to return mine to factory standard, hence the queries,
Thanks in advance

Dmax · 05-24-2005, 19:28

I'm not sure, but I would have thought that the GS V8's would have come out with a single system.

XW_Fairmont · 05-24-2005, 21:29

my understanding is that any car with a fact twin pipe had a twin round opening rear panel. Square was only GT.

4Vman · 05-24-2005, 21:56

Quote:

Originally Posted by XW_Fairmont

my understanding is that any car with a fact twin pipe had a twin round opening rear panel. Square was only GT.

Correct, and the rear panel is removable.
Remember GS was a cosmetic option avaliable on any Falcon/Fairmont from 6cyl to 351. Exhaust was not part of the option pack (for obvious reasons) but twin 2"? was an option on the V8 falcon/fairmonts.

jg66me · 05-25-2005, 05:03

Somthing to note is that the twin exhaust cars have a different diff housing to the single exhaust. Cars with the single exhaust have the brake pipe go from the body to a union on the axle housing. Twin exhaust cars have a special bracket with the union on it that bolts to the front of the diff centre on 9 inch or onto the cover plate of BW diffs. Also the breathers are diffrent, single exhaust cars have a pipe on the left side and dual exaust cars have a breather cap.

Steven B

RPO-083 · 05-27-2005, 01:21

Quote:

Originally Posted by jg66me

Somthing to note is that the twin exhaust cars have a different diff housing to the single exhaust. Cars with the single exhaust have the brake pipe go from the body to a union on the axle housing. Twin exhaust cars have a special bracket with the union on it that bolts to the front of the diff centre on 9 inch or onto the cover plate of BW diffs. Also the breathers are diffrent, single exhaust cars have a pipe on the left side and dual exaust cars have a breather cap.

Steven B

Agreed. Also, the easy one is the muffler heatsheilds spotwelded under the floorpan below the rear seat.......

xcgxl · 05-27-2005, 01:45

Quote:

Originally Posted by jg66me

Somthing to note is that the twin exhaust cars have a different diff housing to the single exhaust. Cars with the single exhaust have the brake pipe go from the body to a union on the axle housing. Twin exhaust cars have a special bracket with the union on it that bolts to the front of the diff centre on 9 inch or onto the cover plate of BW diffs. Also the breathers are diffrent, single exhaust cars have a pipe on the left side and dual exaust cars have a breather cap.

Steven B

What does the breather cap look like? I converted my car from single to dual exhaust brake pipes. My mates XC has factory dual exhaust and he just has a bolt in there. His car is pretty original, or so I thought. I copied the brake pipes on it. I was thinking of getting one of those K&N or similar breathers with the 5/16" inlet and hose clamp.